Comparisons with EOP SLR Series

On the following pages you will find a comparison between the individual solutions of the analysis centres and the IVS combination with respect to the ILRS A combined series. The ILRS A series provides Earth orientation parameters (EOP):

Polar motion with respect to the crust X-Pole and Y-Pole,

Irregularities of the rotation angle rate LOD,

referred to the precession-nutation model IAU2006 and with respect to the ITRF2014. Until the end of 2014, EOP solution aligned to the ILRS contribution to ITRF2014 is used. Weekly ILRS A EOP solutions is appended starting in 2015 ongoing.

The comparison is embedded into an interactive tool containing data since 1996. The values are smoothed by a moving median. The subset size of the sliding window is ±35 days and is shifted forward each 7 days. The user is free to display the graphics of the individual solution and to choose the time-spans.